초록

An arrangement for the elastic articulated link between two components of a horological assembly, wherein it comprises at least one link shaft and one spring (25; 25′) working in torsion mode between the two components to exert an elastic return force.

대표청구항 ▼

1. An arrangement forming an elastic articulated linkage between first and second components of a horological assembly, wherein the arrangement comprises at least one link shaft and at least one torsion spring working in torsion mode between the first and second components to exert an elastic return

1. An arrangement forming an elastic articulated linkage between first and second components of a horological assembly, wherein the arrangement comprises at least one link shaft and at least one torsion spring working in torsion mode between the first and second components to exert an elastic return force,the torsion spring comprising at least one guiding surface to guide, with lesser play, the movement of at least one of the first and second components of the horological assembly,wherein the torsion spring has at least first and second parts each comprising a respective angular blocking element, said at least first and second parts being arranged at any of at least one end and a central area of the torsion spring. 2. The arrangement as claimed claim 1, wherein the torsion spring is a helical torsion spring, and wherein the first part is linked to the first component of the horological assembly and the second part is linked to the second component of the horological assembly. 3. The arrangement as claimed in claim 1, wherein the torsion spring comprises a torsion wire. 4. The arrangement as claimed in claim 3, wherein the torsion spring comprises at least one part added on and fixed around the torsion wire, and wherein an outer surface of the at least one part forms the at least one guiding surface for the movement of at least one component of the horological assembly. 5. The arrangement as claimed in claim 1, wherein at least one part of the torsion spring comprises an angular blocking element to prevent or limit, in both directions, any rotation of the part relative to the horological component with which the part is linked. 6. The arrangement as claimed in claim 5, wherein the angular blocking element of the part of the torsion spring comprises at least one feature selected from a protuberances, a set of teeth, a flat, a countersink, and a cutout, wherein the feature is at least one of radial and axial, and arranged on a substantially cylindrical surface to prevent or limit, in both directions, any rotation relative to the horological component with which the part of the torsion spring is linked. 7. The arrangement for as claimed in claim 1, wherein the at least one torsion spring is a helical torsion spring at the center of which is arranged a bar forming an articulation shaft around which is articulated at least one component of the horological assembly. 8. The arrangement as claimed in claim 1, wherein the torsion spring is in the form of a single monolithic part or two distinct parts linked together. 9. A horological assembly, comprising an arrangement as claimed in claim 1. 10. The horological assembly as claimed claim 9, which is a clasp for a wrist watch bracelet and wherein one of the first and second components is a locking device. 11. The horological assembly as claimed in claim 9, which is a bracelet for a wrist watch and wherein the first and second components of the horological assembly are two link assemblies of the bracelet, juxtaposed and articulated. 12. A wrist watch, comprising the arrangement as claimed in claim 1. 13. The arrangement as claimed in claim 8, wherein the at least one torsion spring is a helical torsion spring. 14. The horological assembly as claimed claim 10, wherein the locking device is a lever for locking and unlocking the clasp. 15. An arrangement forming an elastic articulated linkage between first and second components of a horological assembly, wherein the arrangement comprises at least one link shaft and at least one torsion spring working in torsion mode between the first and second components to exert an elastic return force,the torsion spring comprising at least one guiding surface to guide, with lesser play, the movement of at least one of the first and second components of the horological assembly,wherein the torsion spring is a helical torsion spring, andwherein the at least one guiding surface is at least one of (i) an area of the helical torsion spring comprising an outer diameter greater than that of the area or areas of the helical torsion spring comprising turns which fulfill the elastic return function by torsion torque, and (ii) an area of the helical torsion spring comprising an axial cutout having an inner diameter less than an inner diameter of the area or areas of the helical torsion spring comprising turns. 16. The arrangement as claimed in claim 15, wherein the at least one guiding surface is an area of the helical torsion spring comprising an axial cutout having an inner diameter less than an inner diameter of the area or areas of the helical torsion spring comprising turns. 17. An arrangement forming an elastic articulated linkage between first and second components of a horological assembly, wherein the arrangement comprises at least one link shaft and at least one torsion spring working in torsion mode between the first and second components to exert an elastic return force,the torsion spring comprising at least one guiding surface to guide, with lesser play, the movement of at least one of the first and second components of the horological assembly,wherein the at least one guiding surface is merged with a part of the torsion spring comprising an angular blocking element to prevent or limit, in both directions, any rotation of the part relative to the one of the first and second components with which the part is linked. 18. An arrangement forming an elastic articulated linkage between first and second components of a horological assembly, wherein the arrangement comprises at least one link shaft and at least one torsion spring working in torsion mode between the first and second components to exert an elastic return force,the torsion spring comprising at least one guiding surface to guide, with lesser play, the movement of at least one of the first and second components of the horological assembly,wherein the at least one torsion spring comprises at least a part forming the link shaft between the first and second components. 19. A horological assembly, comprising an arrangement forming an elastic articulated linkage between first and second components of a horological assembly, wherein the arrangement comprises at least one link shaft and at least one torsion spring working in torsion mode between the first and second components to exert an elastic return force,the torsion spring comprising at least one guiding surface to guide, with lesser play, the movement of at least one of the first and second components of the horological assembly,wherein the horological assembly is a clasp for a wrist watch bracelet and at least one of the first and second components is a locking device,wherein the clasp comprises at least two blades that move relative to one another, the locking device being arranged at a free end of a moving blade, the arrangement being arranged between the moving blade and the locking device, andwherein a first part of the torsion spring has a first angular blocking element for cooperation with first key forms of a first link of the clasp. 20. The horological assembly as claimed in claim 19, wherein the at least one torsion spring includes a first torsion spring and a second torsion spring working in torsion, and wherein the first and second torsion springs are aligned in a transversal direction of the clasp, two lateral ends of the first and second torsion springs each having a respective first angular blocking element for cooperation with respective first key forms of respective first links each of which is an edge link of the clasp and two central ends of the first and second torsion springs each having a respective second blocking element cooperating with respective second key forms of a second link which is a central moving link assembly bearing an attachment element of attachment lever type for locking the clasp. 21. The horological assembly as claimed in claim 19, wherein the at least one torsion spring is a single torsion spring, wherein at least one lateral end of the torsion spring has the first blocking element for cooperation with the first key forms of the first link which is an edge link of the clasp and a rigid area of the torsion spring has a second blocking element cooperating with a central moving link assembly comprising an attachment element for locking the clasp. 22. The horological assembly as claimed in claim 19, wherein the at least one torsion spring is a single torsion spring, wherein at least a first lateral end of the torsion spring has the first blocking element for cooperation with the first key forms of the first link which is an edge link of the clasp and a second lateral end of the torsion spring has a second blocking element cooperating with second key forms of a link assembly bearing an attachment element of attachment lever type for locking the clasp. 23. The horological assembly as claimed in claim 19, wherein at least one lateral end of the torsion spring comprises a guiding transversal cylindrical portion for cooperating with openings in edge link assemblies. 24. The horological assembly as claimed in claim 19, wherein the at least one torsion spring comprises a torsion wire covered by a securely attached first part having the first blocking element for cooperation with the first key forms of the first link which is a central link of the clasp and covered by a securely attached second part having a second blocking element cooperating with an attachment element of attachment lever type for locking the clasp. 25. A horological assembly, comprising an arrangement forming an elastic articulated linkage between first and second components of a horological assembly, wherein the arrangement comprises at least one link shaft and at least one torsion spring working in torsion mode between the first and second components to exert an elastic return force,the torsion spring comprising at least one guiding surface to guide, with lesser play, the movement of at least one of the first and second components of the horological assembly,wherein the horological assembly is a clasp for a wrist watch bracelet and at least one of the first and second components is a locking device,wherein the clasp comprises at least two blades that move relative to one another, the locking device being arranged at a free end of a moving blade, the arrangement being arranged between the moving blade and the locking device, andwherein the at least one torsion spring includes a first torsion spring and a second torsion spring working in torsion, and wherein the first and second torsion springs linked to one another by being torsionally connected to one another. 26. The horological assembly as claimed in claim 25, wherein the connection means is a protuberance on one of the first and second torsion springs cooperating with a corresponding bore on the other of the first and second torsion springs. 27. A horological assembly, comprising an arrangement forming an elastic articulated linkage between first and second components of a horological assembly, wherein the arrangement comprises at least one link shaft and at least one torsion spring working in torsion mode between the first and second components to exert an elastic return force,the torsion spring comprising at least one guiding surface to guide, with lesser play, the movement of at least one of the first and second components of the horological assembly,wherein the horological assembly is a clasp for a wrist watch bracelet and at least one of the first and second components is a locking device,wherein the clasp comprises at least two blades that move relative to one another, the locking device being arranged at a free end of a moving blade, the arrangement being arranged between the moving blade and the locking device, andwherein at least one lateral end of the torsion spring comprises a circular cutout having an inner diameter less than the diameter of turns of a part of the spring fulfilling the elastic return function. 28. The horological assembly as claimed in claim 27, wherein a bar forming an articulation shaft for at least one of the first and second components is arranged within the circular cutout. 29. An arrangement forming an elastic articulated linkage between first and second components of a horological assembly, wherein the arrangement comprises at least one link shaft and at least one torsion spring working in torsion mode between the first and second components to exert an elastic return force,the torsion spring comprising at least one guiding surface to guide, with lesser play, the movement of at least one of the first and second components of the horological assembly,wherein the torsion spring has at least two parts each comprising a respective angular blocking element, said at least two parts being arranged at any of at least one end and a central area of the torsion spring,wherein the torsion spring comprises a torsion wire oriented along a main axis of the elastic torsion return force. 30. An arrangement forming an elastic articulated linkage between first and second components of a horological assembly, wherein the arrangement comprises at least one link shaft and at least one torsion spring working in torsion mode between the first and second components to exert an elastic return force,the torsion spring comprising at least one guiding surface to guide, with lesser play, the movement of at least one of the first and second components of the horological assembly,wherein the torsion spring has at least two parts each comprising a respective angular blocking element, said at least two parts being arranged at any of at least one end and a central area of the torsion spring,wherein the at least one guiding surface comprises a portion of a substantially cylindrical radial surface arranged on a part of the torsion spring and cooperating with a corresponding portion of a substantially cylindrical surface of at least one of the first and second components. 31. An arrangement forming an elastic articulated linkage between first and second components of a horological assembly, wherein the arrangement comprises at least one link shaft and at least one torsion spring working in torsion mode between the first and second components to exert an elastic return force,the torsion spring comprising at least one guiding surface to guide, with lesser play, the movement of at least one of the first and second components of the horological assembly,wherein the torsion spring has at least two parts each comprising a respective angular blocking element, said at least two parts being arranged at any of at least one end and a central area of the torsion spring,wherein the elastic return force of the torsion spring tends to return one of the first and second components toward the other of the first and second components. 32. The arrangement as claimed in claim 31, wherein one of the first and second components is a bracelet clasp locking device. 33. An arrangement forming an elastic articulated linkage between first and second components of a horological assembly, wherein the arrangement comprises at least one link shaft and at least one torsion spring working in torsion mode between the first and second components to exert an elastic return force,the torsion spring comprising at least one guiding surface to guide, with lesser play, the movement of at least one of the first and second components of the horological assembly,wherein the torsion spring has at least two parts each comprising a respective angular blocking element, said at least two parts being arranged at any of at least one end and a central area of the torsion spring,wherein the torsion spring is arranged between two bracelet links, and the at least one guiding surface comprises a first guiding surface cooperating with the first link and a second guiding surface cooperating with the second link.